Hello, What a great forum btw. Im in physics I right now in college. Im going in for my Aerosapce Engineering degree. Most of this stuff is what I did in high school so its not that hard. But when we go into forces my professor made the point that gavity is not a force. In fact he is true that its an acceleration. So my question to everyone is what is gravity then. I know that gravity is considered one of the fundamental forces of nature, and thats its the weakest of them all, but if a force is considered the mass times acceleration how is gravity a force.